APA

Agricultural intensification and environment in tropical areas : sem inar, Symoens & Technical Centre for Agricultural and Rural Cooperation (CTA). (1991). Agricultural intensification and environment in tropical areas. Leiden: Technical Centre for Agricultural and Rural Co-operation.

Chicago

Agricultural intensification and environment in tropical areas : sem inar, Symoens and Technical Centre for Agricultural and Rural Cooperation (CTA). 1991. Agricultural intensification and environment in tropical areas. Leiden: Technical Centre for Agricultural and Rural Co-operation.

Harvard

Agricultural intensification and environment in tropical areas : sem inar, Symoens and Technical Centre for Agricultural and Rural Cooperation (CTA). (1991). Agricultural intensification and environment in tropical areas. Leiden: Technical Centre for Agricultural and Rural Co-operation.

MLA

Agricultural intensification and environment in tropical areas : sem inar, Symoens and Technical Centre for Agricultural and Rural Cooperation (CTA). Agricultural intensification and environment in tropical areas. Leiden: Technical Centre for Agricultural and Rural Co-operation. 1991.